Drive SAMSUNG HM121HI 120GB hdparm -t /dev/sda Timing buffered disk reads: 138 MB in 3.03 seconds = 45.55 MB/sec Drive SanDisk Corp. Cruzer Blade 8GB hdparm -t /dev/sdb Timing buffered disk reads: 72 MB in 3.04 seconds = 23.69 MB/sec Drive Genesys Logic, Inc. microSD Card Reader hdparm -t /dev/sdc Timing buffered disk reads: Drive Multi-Card 0B hdparm -t /dev/sdd Timing buffered disk reads: